Sounds like the LCD is going bad. Could be a wire short inside the display casing, or any number of other things you won't be able to fix yourself.

Have you tried unplugging the Display for an hour or so to let it cool down and reset itself? Speaking of resetting, have you tried adjusting any settings on the display itself (brightness, contrast, resolution, etc?)

The only resetting I did was After the Fact(I turned down the brightness a by a hair)Other than that, the display or even thecables haven't been jiggled or touched.

Like my stroke... It Just Woke Up That Way.

umm... I just sent it to a rinse with DiskWarrior(to no avail) and was about to shut'er down and hope for a ReSet when I came here to check fora reply concerning my Cry 4 Help

Owing to the age I wouldn't doubt that it's theLCD frizzing out...

HEY! ONE OTHER FACTOR!

I have it plugged into an APPLE ADAPTER used tosplit the signal Between 2 Displays...I unhooked the 17" display to make room, butNever Bothered To UNHOOK THE ADAPTER That's still channeling to the 30" Display.

Meanwhile, I unplugged the Displayas much to check out the adapter as the display, the next step would-have-been to take it out ofthe mix if the display's power button was still blinking... WHICH IT'S NOT.

But now that I know the adapter still works, I'll remove the adapter anyway until I decide if I'mgoing to use it as a splitter again (otherwise whyput mileage on it?)

My other alternative is to use any time allottedto me to check out E-Bay for used Displays, andpray that I get one with some life still left in it.

Obsolete products are those that were discontinued more than seven years ago. Apple has discontinued all hardware service for obsolete products with no exceptions. Service providers cannot order parts for obsolete products.

All Apple Retail Stores and the Canadian, European, Latin American and Asia-Pacific operating regions follow the U.S. product list, but make no distinction between vintage and obsolete. When applied to Apple Retail Stores and these operating regions, products on the U.S. Vintage list (all models) are considered obsolete.

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“His throw went absolutely nowhere near where it was going.” ~ Richie Benaud.

This is a very common problem with that version display. It was usually the power brick actually. There is a short cut... but it may be a fire hazard in and of itself. The power brick doesn't put out as much juice and the display thinks there isn't enough current and starts the dreaded coded flash.I did the paper trick and it worked... but I only used it till I got another display.

All sizes of those lucite monitors had this problem.

I have 2 torn down in the back room of my studio ... on a shelf. What a waste.

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